Honestly it's probably just a side effect of the fact that they made it to fit the original hard drive cage, which was obviously of very similar dimensions since hard drives themselves don't change sizes from one chassis to another.

I wanted to use the NZXT one over the 600T's original ones because the NZXT Switch 810's got this cover on the front, so it's not advertising its contents.

Just moved to South Korea so I had to take apart most of the computer for the shipping. Decided to rebuild it using white tubing instead of clear. Turned out looking good imo. Not a super clean build as far as the cable management but I don't really worry about it to much to be honest.

What WC setup are you using on the 600T? I was flipping thru your imgur album, its a really clean setup.

The WC setup is almost entirely different between the two 600T builds. The old one used this IIRC:
Alphacool 360 ST30 & 240 UT45 radiators.
Laiing DDC pump w/ Koolance top & res.
Waterblocks EK Supremacy (plexi/copper) & FC-680 CSQ.
For tubing I used Tygon 1/2" ID tubing, Alphacool "Fat Boy" for fittings.

Things that changed:
GTX 680 has been replaced with the HD 7970 DCII Top. The SSD is now in my laptop. Instead, the PC uses my other (identical) SSD. I also added a Spinpoint F3 1TB from my first build.

Looks like no room to spread your legs without hitting some lower part of the desk. >_<

That can easily be rectified if I so wish. I can remove the surface that my subwoofer is sitting on by unscrewing two screws. The board sits on two brackets which have holes in them just below the support bar so they can be removed and even adjusted as need. Dunno why I put the keyboard tray in though, oh well it keeps the Wii U out of sight

Also, I prefer to have my arms extended when I am gaming, I don't need to sit right up against my desk.

Main card is a Gigabyte Windforce HD 7850 OC, second card is a Sapphire Dual X HD 7850, both 2GB cards. Games run like butter with this setup

Give me some cable ties and I would go to hell & back with that rig, doing some justice to that Seasonic PSU :P
Also some color-matching sata cables wouldn't hurt (all black of course) but that's just me, I have a sheer dislike of cables...even in my own rig. If everything in my house could be connected/powered wirelessly I would so do it. That's right, wireless power!

Give me some cable ties and I would go to hell & back with that rig, doing some justice to that Seasonic PSU :P
Also some color-matching sata cables wouldn't hurt (all black of course) but that's just me, I have a sheer dislike of cables...even in my own rig. If everything in my house could be connected/powered wirelessly I would so do it. That's right, wireless power!

Yeah, I am going to get longer SATA cables and some extensions for my fan cables and such, I just haven't had time to get them ordered.